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About product and suppliers:
        Alibaba.com offers 6,426 dam liner products. About 90% of these are geomembranes, 2% are waterproof membrane. 

A wide variety of dam liner options are available to you, such as free samples, paid samples. 

There are 6,426 dam liner suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Pakistan, which supply 99%, 1%, and 1% of dam liner respectively. 

Dam liner products are most popular in Domestic Market, Southeast Asia, and Oceania. 

You can ensure product safety by selecting from certified suppliers, including 6,426 with ISO9001, 5,780 with OHSAS18001, and 4,090 with ISO14001 certification.